// SPDX-License-Identifier: GPL-2.0
/* Copyright( c ) 2009-2012  Realtek Corporation.*/

#include "../wifi.h"
#include "../pci.h"
#include "../base.h"
#include "../stats.h"
#include "reg.h"
#include "def.h"
#include "phy.h"
#include "trx.h"
#include "led.h"

static u8 _rtl92ce_map_hwqueue_to_fwqueue( struct sk_buff *skb, u8 hw_queue )
{
	__le16 fc = rtl_get_fc( skb );

	if ( unlikely( ieee80211_is_beacon( fc ) ) )
		return QSLT_BEACON;
	if ( ieee80211_is_mgmt( fc ) || ieee80211_is_ctl( fc ) )
		return QSLT_MGNT;

	return skb->priority;
}

static void _rtl92ce_query_rxphystatus( struct ieee80211_hw *hw,
				       struct rtl_stats *pstats,
				       struct rx_desc_92c *pdesc,
				       struct rx_fwinfo_92c *p_drvinfo,
				       bool packet_match_bssid,
				       bool packet_toself,
				       bool packet_beacon )
{
	struct rtl_priv *rtlpriv = rtl_priv( hw );
	struct phy_sts_cck_8192s_t *cck_buf;
	struct rtl_ps_ctl *ppsc = rtl_psc( rtlpriv );
	s8 rx_pwr_all = 0, rx_pwr[4];
	u8 evm, pwdb_all, rf_rx_num = 0;
	u8 i, max_spatial_stream;
	u32 rssi, total_rssi = 0;
	bool is_cck_rate;

	is_cck_rate = RX_HAL_IS_CCK_RATE( pdesc->rxmcs );
	pstats->packet_matchbssid = packet_match_bssid;
	pstats->packet_toself = packet_toself;
	pstats->is_cck = is_cck_rate;
	pstats->packet_beacon = packet_beacon;
	pstats->rx_mimo_sig_qual[0] = -1;
	pstats->rx_mimo_sig_qual[1] = -1;

	if ( is_cck_rate ) {
		u8 report, cck_highpwr;

		cck_buf = ( struct phy_sts_cck_8192s_t * )p_drvinfo;

		if ( ppsc->rfpwr_state == ERFON )
			cck_highpwr = ( u8 ) rtl_get_bbreg( hw,
						 RFPGA0_XA_HSSIPARAMETER2,
						 BIT( 9 ) );
		else
			cck_highpwr = false;

		if ( !cck_highpwr ) {
			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;

			report = cck_buf->cck_agc_rpt & 0xc0;
			report = report >> 6;
			switch ( report ) {
			case 0x3:
				rx_pwr_all = -46 - ( cck_agc_rpt & 0x3e );
				break;
			case 0x2:
				rx_pwr_all = -26 - ( cck_agc_rpt & 0x3e );
				break;
			case 0x1:
				rx_pwr_all = -12 - ( cck_agc_rpt & 0x3e );
				break;
			case 0x0:
				rx_pwr_all = 16 - ( cck_agc_rpt & 0x3e );
				break;
			}
		} else {
			u8 cck_agc_rpt = cck_buf->cck_agc_rpt;

			report = p_drvinfo->cfosho[0] & 0x60;
			report = report >> 5;
			switch ( report ) {
			case 0x3:
				rx_pwr_all = -46 - ( ( cck_agc_rpt & 0x1f ) << 1 );
				break;
			case 0x2:
				rx_pwr_all = -26 - ( ( cck_agc_rpt & 0x1f ) << 1 );
				break;
			case 0x1:
				rx_pwr_all = -12 - ( ( cck_agc_rpt & 0x1f ) << 1 );
				break;
			case 0x0:
				rx_pwr_all = 16 - ( ( cck_agc_rpt & 0x1f ) << 1 );
				break;
			}
		}

		pwdb_all = rtl_query_rxpwrpercentage( rx_pwr_all );
		/* CCK gain is smaller than OFDM/MCS gain,
		 * so we add gain diff by experiences,
		 * the val is 6
		 */
		pwdb_all += 6;
		if ( pwdb_all > 100 )
			pwdb_all = 100;
		/* modify the offset to make the same
		 * gain index with OFDM.
		 */
		if ( pwdb_all > 34 && pwdb_all <= 42 )
			pwdb_all -= 2;
		else if ( pwdb_all > 26 && pwdb_all <= 34 )
			pwdb_all -= 6;
		else if ( pwdb_all > 14 && pwdb_all <= 26 )
			pwdb_all -= 8;
		else if ( pwdb_all > 4 && pwdb_all <= 14 )
			pwdb_all -= 4;

		pstats->rx_pwdb_all = pwdb_all;
		pstats->recvsignalpower = rx_pwr_all;

		/* ( 3 ) Get Signal Quality ( EVM ) */
		if ( packet_match_bssid ) {
			u8 sq;

			if ( pstats->rx_pwdb_all > 40 )
				sq = 100;
			else {
				sq = cck_buf->sq_rpt;
				if ( sq > 64 )
					sq = 0;
				else if ( sq < 20 )
					sq = 100;
				else
					sq = ( ( 64 - sq ) * 100 ) / 44;
			}

			pstats->signalquality = sq;
			pstats->rx_mimo_sig_qual[0] = sq;
			pstats->rx_mimo_sig_qual[1] = -1;
		}
	} else {
		rtlpriv->dm.rfpath_rxenable[0] =
		    rtlpriv->dm.rfpath_rxenable[1] = true;
		/* ( 1 )Get RSSI for HT rate */
		for ( i = RF90_PATH_A; i < RF90_PATH_MAX; i++ ) {
			/* we will judge RF RX path now. */
			if ( rtlpriv->dm.rfpath_rxenable[i] )
				rf_rx_num++;

			rx_pwr[i] =
			    ( ( p_drvinfo->gain_trsw[i] & 0x3f ) * 2 ) - 110;
			/* Translate DBM to percentage. */
			rssi = rtl_query_rxpwrpercentage( rx_pwr[i] );
			total_rssi += rssi;
			/* Get Rx snr value in DB */
			rtlpriv->stats.rx_snr_db[i] =
			    ( long )( p_drvinfo->rxsnr[i] / 2 );

			/* Record Signal Strength for next packet */
			if ( packet_match_bssid )
				pstats->rx_mimo_signalstrength[i] = ( u8 ) rssi;
		}

		/* ( 2 )PWDB, Average PWDB cacluated by
		 * hardware ( for rate adaptive )
		 */
		rx_pwr_all = ( ( p_drvinfo->pwdb_all >> 1 ) & 0x7f ) - 110;
		pwdb_all = rtl_query_rxpwrpercentage( rx_pwr_all );
		pstats->rx_pwdb_all = pwdb_all;
		pstats->rxpower = rx_pwr_all;
		pstats->recvsignalpower = rx_pwr_all;

		/* ( 3 )EVM of HT rate */
		if ( pstats->is_ht && pstats->rate >= DESC_RATEMCS8 &&
		    pstats->rate <= DESC_RATEMCS15 )
			max_spatial_stream = 2;
		else
			max_spatial_stream = 1;

		for ( i = 0; i < max_spatial_stream; i++ ) {
			evm = rtl_evm_db_to_percentage( p_drvinfo->rxevm[i] );

			if ( packet_match_bssid ) {
				/* Fill value in RFD, Get the first
				 * spatial stream only
				 */
				if ( i == 0 )
					pstats->signalquality =
					    ( u8 )( evm & 0xff );
				pstats->rx_mimo_sig_qual[i] = ( u8 )( evm & 0xff );
			}
		}
	}

	/* UI BSS List signal strength( in percentage ),
	 * make it good looking, from 0~100.
	 */
	if ( is_cck_rate )
		pstats->signalstrength =
		    ( u8 )( rtl_signal_scale_mapping( hw, pwdb_all ) );
	else if ( rf_rx_num != 0 )
		pstats->signalstrength =
		    ( u8 )( rtl_signal_scale_mapping( hw, total_rssi /= rf_rx_num ) );
}

static void _rtl92ce_translate_rx_signal_stuff( struct ieee80211_hw *hw,
					       struct sk_buff *skb,
					       struct rtl_stats *pstats,
					       struct rx_desc_92c *pdesc,
					       struct rx_fwinfo_92c *p_drvinfo )
{
	struct rtl_mac *mac = rtl_mac( rtl_priv( hw ) );
	struct rtl_efuse *rtlefuse = rtl_efuse( rtl_priv( hw ) );

	struct ieee80211_hdr *hdr;
	u8 *tmp_buf;
	u8 *praddr;
	__le16 fc;
	u16 type, c_fc;
	bool packet_matchbssid, packet_toself, packet_beacon = false;

	tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;

	hdr = ( struct ieee80211_hdr * )tmp_buf;
	fc = hdr->frame_control;
	c_fc = le16_to_cpu( fc );
	type = WLAN_FC_GET_TYPE( fc );
	praddr = hdr->addr1;

	packet_matchbssid =
	    ( ( IEEE80211_FTYPE_CTL != type ) &&
	     ether_addr_equal( mac->bssid,
			      ( c_fc & IEEE80211_FCTL_TODS ) ? hdr->addr1 :
			      ( c_fc & IEEE80211_FCTL_FROMDS ) ? hdr->addr2 :
			      hdr->addr3 ) &&
	     ( !pstats->hwerror ) && ( !pstats->crc ) && ( !pstats->icv ) );

	packet_toself = packet_matchbssid &&
	     ether_addr_equal( praddr, rtlefuse->dev_addr );

	if ( ieee80211_is_beacon( fc ) )
		packet_beacon = true;

	_rtl92ce_query_rxphystatus( hw, pstats, pdesc, p_drvinfo,
				   packet_matchbssid, packet_toself,
				   packet_beacon );

	rtl_process_phyinfo( hw, tmp_buf, pstats );
}

bool rtl92ce_rx_query_desc( struct ieee80211_hw *hw,
			   struct rtl_stats *stats,
			   struct ieee80211_rx_status *rx_status,
			   u8 *p_desc8, struct sk_buff *skb )
{
	struct rx_fwinfo_92c *p_drvinfo;
	struct rx_desc_92c *pdesc = ( struct rx_desc_92c * )p_desc8;
	struct ieee80211_hdr *hdr;
	__le32 *p_desc = ( __le32 * )p_desc8;
	u32 phystatus = get_rx_desc_physt( p_desc );

	stats->length = ( u16 )get_rx_desc_pkt_len( p_desc );
	stats->rx_drvinfo_size = ( u8 )get_rx_desc_drv_info_size( p_desc ) *
	    RX_DRV_INFO_SIZE_UNIT;
	stats->rx_bufshift = ( u8 )( get_rx_desc_shift( p_desc ) & 0x03 );
	stats->icv = ( u16 )get_rx_desc_icv( p_desc );
	stats->crc = ( u16 )get_rx_desc_crc32( p_desc );
	stats->hwerror = ( stats->crc | stats->icv );
	stats->decrypted = !get_rx_desc_swdec( p_desc );
	stats->rate = ( u8 )get_rx_desc_rxmcs( p_desc );
	stats->shortpreamble = ( u16 )get_rx_desc_splcp( p_desc );
	stats->isampdu = ( bool )( get_rx_desc_paggr( p_desc ) == 1 );
	stats->isfirst_ampdu = ( bool )( ( get_rx_desc_paggr( p_desc ) == 1 ) &&
				      ( get_rx_desc_faggr( p_desc ) == 1 ) );
	stats->timestamp_low = get_rx_desc_tsfl( p_desc );
	stats->rx_is40mhzpacket = ( bool )get_rx_desc_bw( p_desc );
	stats->is_ht = ( bool )get_rx_desc_rxht( p_desc );

	stats->is_cck = RX_HAL_IS_CCK_RATE( pdesc->rxmcs );

	rx_status->freq = hw->conf.chandef.chan->center_freq;
	rx_status->band = hw->conf.chandef.chan->band;

	hdr = ( struct ieee80211_hdr * )( skb->data + stats->rx_drvinfo_size
			+ stats->rx_bufshift );

	if ( stats->crc )
		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;

	if ( stats->rx_is40mhzpacket )
		rx_status->bw = RATE_INFO_BW_40;

	if ( stats->is_ht )
		rx_status->encoding = RX_ENC_HT;

	rx_status->flag |= RX_FLAG_MACTIME_START;

	/* hw will set stats->decrypted true, if it finds the
	 * frame is open data frame or mgmt frame.
	 * So hw will not decryption robust managment frame
	 * for IEEE80211w but still set status->decrypted
	 * true, so here we should set it back to undecrypted
	 * for IEEE80211w frame, and mac80211 sw will help
	 * to decrypt it
	 */
	if ( stats->decrypted ) {
		if ( ( _ieee80211_is_robust_mgmt_frame( hdr ) ) &&
		    ( ieee80211_has_protected( hdr->frame_control ) ) )
			rx_status->flag &= ~RX_FLAG_DECRYPTED;
		else
			rx_status->flag |= RX_FLAG_DECRYPTED;
	}
	/* rate_idx: index of data rate into band's
	 * supported rates or MCS index if HT rates
	 * are use ( RX_FLAG_HT )
	 * Notice: this is diff with windows define
	 */
	rx_status->rate_idx = rtlwifi_rate_mapping( hw, stats->is_ht,
						   false, stats->rate );

	rx_status->mactime = stats->timestamp_low;
	if ( phystatus ) {
		p_drvinfo = ( struct rx_fwinfo_92c * )( skb->data +
						     stats->rx_bufshift );

		_rtl92ce_translate_rx_signal_stuff( hw,
						   skb, stats, pdesc,
						   p_drvinfo );
	}

	/*rx_status->qual = stats->signal; */
	rx_status->signal = stats->recvsignalpower + 10;

	return true;
}

void rtl92ce_tx_fill_desc( struct ieee80211_hw *hw,
			  struct ieee80211_hdr *hdr, u8 *pdesc8,
			  u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
			  struct ieee80211_sta *sta,
			  struct sk_buff *skb,
			  u8 hw_queue, struct rtl_tcb_desc *tcb_desc )
{
	struct rtl_priv *rtlpriv = rtl_priv( hw );
	struct rtl_mac *mac = rtl_mac( rtl_priv( hw ) );
	struct rtl_pci *rtlpci = rtl_pcidev( rtl_pcipriv( hw ) );
	struct rtl_ps_ctl *ppsc = rtl_psc( rtl_priv( hw ) );
	bool defaultadapter = true;
	__le32 *pdesc = ( __le32 * )pdesc8;
	u16 seq_number;
	__le16 fc = hdr->frame_control;
	u8 fw_qsel = _rtl92ce_map_hwqueue_to_fwqueue( skb, hw_queue );
	bool firstseg = ( ( hdr->seq_ctrl &
			  cpu_to_le16( IEEE80211_SCTL_FRAG ) ) == 0 );

	bool lastseg = ( ( hdr->frame_control &
			 cpu_to_le16( IEEE80211_FCTL_MOREFRAGS ) ) == 0 );

	dma_addr_t mapping = pci_map_single( rtlpci->pdev,
					    skb->data, skb->len,
					    PCI_DMA_TODEVICE );

	u8 bw_40 = 0;

	if ( pci_dma_mapping_error( rtlpci->pdev, mapping ) ) {
		RT_TRACE( rtlpriv, COMP_SEND, DBG_TRACE,
			 "DMA mapping error\n" );
		return;
	}
	rcu_read_lock();
	sta = get_sta( hw, mac->vif, mac->bssid );
	if ( mac->opmode == NL80211_IFTYPE_STATION ) {
		bw_40 = mac->bw_40;
	} else if ( mac->opmode == NL80211_IFTYPE_AP ||
		   mac->opmode == NL80211_IFTYPE_ADHOC ||
		   mac->opmode == NL80211_IFTYPE_MESH_POINT ) {
		if ( sta )
			bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
	}

	seq_number = ( le16_to_cpu( hdr->seq_ctrl ) & IEEE80211_SCTL_SEQ ) >> 4;

	rtl_get_tcb_desc( hw, info, sta, skb, tcb_desc );

	clear_pci_tx_desc_content( pdesc, sizeof( struct tx_desc_92c ) );

	if ( ieee80211_is_nullfunc( fc ) || ieee80211_is_ctl( fc ) ) {
		firstseg = true;
		lastseg = true;
	}
	if ( firstseg ) {
		set_tx_desc_offset( pdesc, USB_HWDESC_HEADER_LEN );

		set_tx_desc_tx_rate( pdesc, tcb_desc->hw_rate );

		if ( tcb_desc->use_shortgi || tcb_desc->use_shortpreamble )
			set_tx_desc_data_shortgi( pdesc, 1 );

		if ( info->flags & IEEE80211_TX_CTL_AMPDU ) {
			set_tx_desc_agg_break( pdesc, 1 );
			set_tx_desc_max_agg_num( pdesc, 0x14 );
		}
		set_tx_desc_seq( pdesc, seq_number );

		set_tx_desc_rts_enable( pdesc, ( ( tcb_desc->rts_enable &&
						!tcb_desc->
						cts_enable ) ? 1 : 0 ) );
		set_tx_desc_hw_rts_enable( pdesc,
					  ( ( tcb_desc->rts_enable
					    || tcb_desc->cts_enable ) ? 1 : 0 ) );
		set_tx_desc_cts2self( pdesc, ( ( tcb_desc->cts_enable ) ? 1 : 0 ) );
		set_tx_desc_rts_stbc( pdesc, ( ( tcb_desc->rts_stbc ) ? 1 : 0 ) );

		set_tx_desc_rts_rate( pdesc, tcb_desc->rts_rate );
		set_tx_desc_rts_bw( pdesc, 0 );
		set_tx_desc_rts_sc( pdesc, tcb_desc->rts_sc );
		set_tx_desc_rts_short( pdesc,
				      ( ( tcb_desc->rts_rate <= DESC_RATE54M ) ?
				       ( tcb_desc->rts_use_shortpreamble ? 1 : 0 )
				       : ( tcb_desc->rts_use_shortgi ? 1 : 0 ) ) );

		if ( bw_40 ) {
			if ( tcb_desc->packet_bw ) {
				set_tx_desc_data_bw( pdesc, 1 );
				set_tx_desc_tx_sub_carrier( pdesc, 3 );
			} else {
				set_tx_desc_data_bw( pdesc, 0 );
				set_tx_desc_tx_sub_carrier( pdesc,
						 mac->cur_40_prime_sc );
			}
		} else {
			set_tx_desc_data_bw( pdesc, 0 );
			set_tx_desc_tx_sub_carrier( pdesc, 0 );
		}

		set_tx_desc_linip( pdesc, 0 );
		set_tx_desc_pkt_size( pdesc, ( u16 )skb->len );

		if ( sta ) {
			u8 ampdu_density = sta->ht_cap.ampdu_density;

			set_tx_desc_ampdu_density( pdesc, ampdu_density );
		}

		if ( info->control.hw_key ) {
			struct ieee80211_key_conf *keyconf =
			    info->control.hw_key;

			switch ( keyconf->cipher ) {
			case WLAN_CIPHER_SUITE_WEP40:
			case WLAN_CIPHER_SUITE_WEP104:
			case WLAN_CIPHER_SUITE_TKIP:
				set_tx_desc_sec_type( pdesc, 0x1 );
				break;
			case WLAN_CIPHER_SUITE_CCMP:
				set_tx_desc_sec_type( pdesc, 0x3 );
				break;
			default:
				set_tx_desc_sec_type( pdesc, 0x0 );
				break;

			}
		}

		set_tx_desc_pkt_id( pdesc, 0 );
		set_tx_desc_queue_sel( pdesc, fw_qsel );

		set_tx_desc_data_rate_fb_limit( pdesc, 0x1F );
		set_tx_desc_rts_rate_fb_limit( pdesc, 0xF );
		set_tx_desc_disable_fb( pdesc, 0 );
		set_tx_desc_use_rate( pdesc, tcb_desc->use_driver_rate ? 1 : 0 );

		if ( ieee80211_is_data_qos( fc ) ) {
			if ( mac->rdg_en ) {
				RT_TRACE( rtlpriv, COMP_SEND, DBG_TRACE,
					 "Enable RDG function\n" );
				set_tx_desc_rdg_enable( pdesc, 1 );
				set_tx_desc_htc( pdesc, 1 );
			}
		}
	}
	rcu_read_unlock();

	set_tx_desc_first_seg( pdesc, ( firstseg ? 1 : 0 ) );
	set_tx_desc_last_seg( pdesc, ( lastseg ? 1 : 0 ) );

	set_tx_desc_tx_buffer_size( pdesc, ( u16 )skb->len );

	set_tx_desc_tx_buffer_address( pdesc, mapping );

	if ( rtlpriv->dm.useramask ) {
		set_tx_desc_rate_id( pdesc, tcb_desc->ratr_index );
		set_tx_desc_macid( pdesc, tcb_desc->mac_id );
	} else {
		set_tx_desc_rate_id( pdesc, 0xC + tcb_desc->ratr_index );
		set_tx_desc_macid( pdesc, tcb_desc->ratr_index );
	}

	if ( ( !ieee80211_is_data_qos( fc ) ) && ppsc->fwctrl_lps ) {
		set_tx_desc_hwseq_en( pdesc, 1 );
		set_tx_desc_pkt_id( pdesc, 8 );

		if ( !defaultadapter )
			set_tx_desc_qos( pdesc, 1 );
	}

	set_tx_desc_more_frag( pdesc, ( lastseg ? 0 : 1 ) );

	if ( is_multicast_ether_addr( ieee80211_get_DA( hdr ) ) ||
	    is_broadcast_ether_addr( ieee80211_get_DA( hdr ) ) ) {
		set_tx_desc_bmc( pdesc, 1 );
	}

	RT_TRACE( rtlpriv, COMP_SEND, DBG_TRACE, "\n" );
}

void rtl92ce_tx_fill_cmddesc( struct ieee80211_hw *hw,
			     u8 *pdesc8, bool firstseg,
			     bool lastseg, struct sk_buff *skb )
{
	struct rtl_priv *rtlpriv = rtl_priv( hw );
	struct rtl_pci *rtlpci = rtl_pcidev( rtl_pcipriv( hw ) );
	u8 fw_queue = QSLT_BEACON;
	__le32 *pdesc = ( __le32 * )pdesc8;

	dma_addr_t mapping = pci_map_single( rtlpci->pdev,
					    skb->data, skb->len,
					    PCI_DMA_TODEVICE );

	struct ieee80211_hdr *hdr = ( struct ieee80211_hdr * )( skb->data );
	__le16 fc = hdr->frame_control;

	if ( pci_dma_mapping_error( rtlpci->pdev, mapping ) ) {
		RT_TRACE( rtlpriv, COMP_SEND, DBG_TRACE,
			 "DMA mapping error\n" );
		return;
	}
	clear_pci_tx_desc_content( pdesc, TX_DESC_SIZE );

	if ( firstseg )
		set_tx_desc_offset( pdesc, USB_HWDESC_HEADER_LEN );

	set_tx_desc_tx_rate( pdesc, DESC_RATE1M );

	set_tx_desc_seq( pdesc, 0 );

	set_tx_desc_linip( pdesc, 0 );

	set_tx_desc_queue_sel( pdesc, fw_queue );

	set_tx_desc_first_seg( pdesc, 1 );
	set_tx_desc_last_seg( pdesc, 1 );

	set_tx_desc_tx_buffer_size( pdesc, ( u16 )( skb->len ) );

	set_tx_desc_tx_buffer_address( pdesc, mapping );

	set_tx_desc_rate_id( pdesc, 7 );
	set_tx_desc_macid( pdesc, 0 );

	set_tx_desc_own( pdesc, 1 );

	set_tx_desc_pkt_size( pdesc, ( u16 )( skb->len ) );

	set_tx_desc_first_seg( pdesc, 1 );
	set_tx_desc_last_seg( pdesc, 1 );

	set_tx_desc_offset( pdesc, 0x20 );

	set_tx_desc_use_rate( pdesc, 1 );

	if ( !ieee80211_is_data_qos( fc ) ) {
		set_tx_desc_hwseq_en( pdesc, 1 );
		set_tx_desc_pkt_id( pdesc, 8 );
	}

	RT_PRINT_DATA( rtlpriv, COMP_CMD, DBG_LOUD,
		      "H2C Tx Cmd Content", pdesc, TX_DESC_SIZE );
}

void rtl92ce_set_desc( struct ieee80211_hw *hw, u8 *pdesc8, bool istx,
		      u8 desc_name, u8 *val )
{
	__le32 *pdesc = ( __le32 * )pdesc8;

	if ( istx ) {
		switch ( desc_name ) {
		case HW_DESC_OWN:
			wmb();
			set_tx_desc_own( pdesc, 1 );
			break;
		case HW_DESC_TX_NEXTDESC_ADDR:
			set_tx_desc_next_desc_address( pdesc, *( u32 * )val );
			break;
		default:
			WARN_ONCE( true, "rtl8192ce: ERR txdesc :%d not processed\n",
				  desc_name );
			break;
		}
	} else {
		switch ( desc_name ) {
		case HW_DESC_RXOWN:
			wmb();
			set_rx_desc_own( pdesc, 1 );
			break;
		case HW_DESC_RXBUFF_ADDR:
			set_rx_desc_buff_addr( pdesc, *( u32 * )val );
			break;
		case HW_DESC_RXPKT_LEN:
			set_rx_desc_pkt_len( pdesc, *( u32 * )val );
			break;
		case HW_DESC_RXERO:
			set_rx_desc_eor( pdesc, 1 );
			break;
		default:
			WARN_ONCE( true, "rtl8192ce: ERR rxdesc :%d not processed\n",
				  desc_name );
			break;
		}
	}
}

u64 rtl92ce_get_desc( struct ieee80211_hw *hw, u8 *p_desc8,
		     bool istx, u8 desc_name )
{
	u32 ret = 0;
	__le32 *p_desc = ( __le32 * )p_desc8;

	if ( istx ) {
		switch ( desc_name ) {
		case HW_DESC_OWN:
			ret = get_tx_desc_own( p_desc );
			break;
		case HW_DESC_TXBUFF_ADDR:
			ret = get_tx_desc_tx_buffer_address( p_desc );
			break;
		default:
			WARN_ONCE( true, "rtl8192ce: ERR txdesc :%d not processed\n",
				  desc_name );
			break;
		}
	} else {
		switch ( desc_name ) {
		case HW_DESC_OWN:
			ret = get_rx_desc_own( p_desc );
			break;
		case HW_DESC_RXPKT_LEN:
			ret = get_rx_desc_pkt_len( p_desc );
			break;
		case HW_DESC_RXBUFF_ADDR:
			ret = get_rx_desc_buff_addr( p_desc );
			break;
		default:
			WARN_ONCE( true, "rtl8192ce: ERR rxdesc :%d not processed\n",
				  desc_name );
			break;
		}
	}
	return ret;
}

bool rtl92ce_is_tx_desc_closed( struct ieee80211_hw *hw,
			       u8 hw_queue, u16 index )
{
	struct rtl_pci *rtlpci = rtl_pcidev( rtl_pcipriv( hw ) );
	struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
	u8 *entry = ( u8 * )( &ring->desc[ring->idx] );
	u8 own = ( u8 )rtl92ce_get_desc( hw, entry, true, HW_DESC_OWN );

	/*beacon packet will only use the first
	 *descriptor defautly,and the own may not
	 *be cleared by the hardware
	 */
	if ( own )
		return false;
	return true;
}

void rtl92ce_tx_polling( struct ieee80211_hw *hw, u8 hw_queue )
{
	struct rtl_priv *rtlpriv = rtl_priv( hw );

	if ( hw_queue == BEACON_QUEUE ) {
		rtl_write_word( rtlpriv, REG_PCIE_CTRL_REG, BIT( 4 ) );
	} else {
		rtl_write_word( rtlpriv, REG_PCIE_CTRL_REG,
			       BIT( 0 ) << ( hw_queue ) );
	}
}

